MIPS: Use fallthrough for arch/mips

Convert the various /* fallthrough */ comments to the pseudo-keyword
fallthrough;

Done via script:
https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe@perches.com/

Signed-off-by: Liangliang Huang <huangll@lemote.com>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

17 files changed, 35 insertions, 55 deletions

diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 9701c89e7e14..587cf1d115e8 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -439,7 +439,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 					regs->cp0_epc + dec_insn.pc_inc +
 					dec_insn.next_pc_inc;
 			}
-			/* fall through */
+			fallthrough;
 		case jr_op:
 			/* For R6, JR already emulated in jalr_op */
 			if (NO_R6EMU && insn.r_format.func == jr_op)
@@ -459,11 +459,11 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 			regs->regs[31] = regs->cp0_epc +
 				dec_insn.pc_inc +
 				dec_insn.next_pc_inc;
-			/* fall through */
+			fallthrough;
 		case bltzl_op:
 			if (NO_R6EMU)
 				break;
-			/* fall through */
+			fallthrough;
 		case bltz_op:
 			if ((long)regs->regs[insn.i_format.rs] < 0)
 				*contpc = regs->cp0_epc +
@@ -483,11 +483,11 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 			regs->regs[31] = regs->cp0_epc +
 				dec_insn.pc_inc +
 				dec_insn.next_pc_inc;
-			/* fall through */
+			fallthrough;
 		case bgezl_op:
 			if (NO_R6EMU)
 				break;
-			/* fall through */
+			fallthrough;
 		case bgez_op:
 			if ((long)regs->regs[insn.i_format.rs] >= 0)
 				*contpc = regs->cp0_epc +
@@ -502,12 +502,12 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 		break;
 	case jalx_op:
 		set_isa16_mode(bit);
-		/* fall through */
+		fallthrough;
 	case jal_op:
 		regs->regs[31] = regs->cp0_epc +
 			dec_insn.pc_inc +
 			dec_insn.next_pc_inc;
-		/* fall through */
+		fallthrough;
 	case j_op:
 		*contpc = regs->cp0_epc + dec_insn.pc_inc;
 		*contpc >>= 28;
@@ -519,7 +519,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 	case beql_op:
 		if (NO_R6EMU)
 			break;
-		/* fall through */
+		fallthrough;
 	case beq_op:
 		if (regs->regs[insn.i_format.rs] ==
 		    regs->regs[insn.i_format.rt])
@@ -534,7 +534,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 	case bnel_op:
 		if (NO_R6EMU)
 			break;
-		/* fall through */
+		fallthrough;
 	case bne_op:
 		if (regs->regs[insn.i_format.rs] !=
 		    regs->regs[insn.i_format.rt])
@@ -549,7 +549,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 	case blezl_op:
 		if (!insn.i_format.rt && NO_R6EMU)
 			break;
-		/* fall through */
+		fallthrough;
 	case blez_op:
 
 		/*
@@ -587,7 +587,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 	case bgtzl_op:
 		if (!insn.i_format.rt && NO_R6EMU)
 			break;
-		/* fall through */
+		fallthrough;
 	case bgtz_op:
 		/*
 		 * Compact branches for R6 for the
@@ -725,7 +725,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 			return 1;
 		}
 		/* R2/R6 compatible cop1 instruction */
-		/* fall through */
+		fallthrough;
 	case cop2_op:
 	case cop1x_op:
 		if (insn.i_format.rs == bc_op) {
@@ -1217,14 +1217,14 @@ emul:
 			case bcfl_op:
 				if (cpu_has_mips_2_3_4_5_r)
 					likely = 1;
-				/* fall through */
+				fallthrough;
 			case bcf_op:
 				cond = !cond;
 				break;
 			case bctl_op:
 				if (cpu_has_mips_2_3_4_5_r)
 					likely = 1;
-				/* fall through */
+				fallthrough;
 			case bct_op:
 				break;
 			}
diff --git a/arch/mips/math-emu/dp_add.c b/arch/mips/math-emu/dp_add.c
index a8f98b8157f5..78504736be9e 100644
--- a/arch/mips/math-emu/dp_add.c
+++ b/arch/mips/math-emu/dp_add.c
@@ -92,8 +92,7 @@ union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/dp_div.c b/arch/mips/math-emu/dp_div.c
index 2b682e930e39..ac1ecc46248d 100644
--- a/arch/mips/math-emu/dp_div.c
+++ b/arch/mips/math-emu/dp_div.c
@@ -91,8 +91,7 @@ union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/dp_fmax.c b/arch/mips/math-emu/dp_fmax.c
index 3eda9ff7b491..126ec90bb4c7 100644
--- a/arch/mips/math-emu/dp_fmax.c
+++ b/arch/mips/math-emu/dp_fmax.c
@@ -93,8 +93,7 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
@@ -222,8 +221,7 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/dp_fmin.c b/arch/mips/math-emu/dp_fmin.c
index b3594a1704a7..35ded4c45989 100644
--- a/arch/mips/math-emu/dp_fmin.c
+++ b/arch/mips/math-emu/dp_fmin.c
@@ -93,8 +93,7 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
@@ -222,8 +221,7 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/dp_maddf.c b/arch/mips/math-emu/dp_maddf.c
index e24ef374d828..931e66f683ca 100644
--- a/arch/mips/math-emu/dp_maddf.c
+++ b/arch/mips/math-emu/dp_maddf.c
@@ -150,8 +150,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
diff --git a/arch/mips/math-emu/dp_mul.c b/arch/mips/math-emu/dp_mul.c
index e8a97d26472a..8a671bb7af12 100644
--- a/arch/mips/math-emu/dp_mul.c
+++ b/arch/mips/math-emu/dp_mul.c
@@ -89,8 +89,7 @@ union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		DPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/dp_sqrt.c b/arch/mips/math-emu/dp_sqrt.c
index 06be390ba79a..1ee38f8242fd 100644
--- a/arch/mips/math-emu/dp_sqrt.c
+++ b/arch/mips/math-emu/dp_sqrt.c
@@ -52,8 +52,7 @@ union ieee754dp ieee754dp_sqrt(union ieee754dp x)
 
 	case IEEE754_CLASS_DNORM:
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case IEEE754_CLASS_NORM:
 		if (xs) {
 			/* sqrt(-x) = Nan */
@@ -130,7 +129,7 @@ union ieee754dp ieee754dp_sqrt(union ieee754dp x)
 		switch (oldcsr.rm) {
 		case FPU_CSR_RU:
 			y.bits += 1;
-			/* fall through */
+			fallthrough;
 		case FPU_CSR_RN:
 			t.bits += 1;
 			break;
diff --git a/arch/mips/math-emu/dp_sub.c b/arch/mips/math-emu/dp_sub.c
index f08aecefceff..08474ad2a64e 100644
--- a/arch/mips/math-emu/dp_sub.c
+++ b/arch/mips/math-emu/dp_sub.c
@@ -94,8 +94,7 @@ union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		/* normalize ym,ye */
 		DPDNORMY;
diff --git a/arch/mips/math-emu/sp_add.c b/arch/mips/math-emu/sp_add.c
index 9af3ec7302fb..715cd0534301 100644
--- a/arch/mips/math-emu/sp_add.c
+++ b/arch/mips/math-emu/sp_add.c
@@ -92,8 +92,7 @@ union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/sp_div.c b/arch/mips/math-emu/sp_div.c
index fcc285f3b48d..2bfa266fdc76 100644
--- a/arch/mips/math-emu/sp_div.c
+++ b/arch/mips/math-emu/sp_div.c
@@ -91,8 +91,7 @@ union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/sp_fdp.c b/arch/mips/math-emu/sp_fdp.c
index 9f1456109aa8..56417497c88e 100644
--- a/arch/mips/math-emu/sp_fdp.c
+++ b/arch/mips/math-emu/sp_fdp.c
@@ -34,8 +34,7 @@ union ieee754sp ieee754sp_fdp(union ieee754dp x)
 	case IEEE754_CLASS_SNAN:
 		x = ieee754dp_nanxcpt(x);
 		EXPLODEXDP;
-		/* fall through */
-
+		fallthrough;
 	case IEEE754_CLASS_QNAN:
 		y = ieee754sp_nan_fdp(xs, xm);
 		if (!ieee754_csr.nan2008) {
diff --git a/arch/mips/math-emu/sp_fmax.c b/arch/mips/math-emu/sp_fmax.c
index 4ce1d1f8b499..3fb16a1df3b8 100644
--- a/arch/mips/math-emu/sp_fmax.c
+++ b/arch/mips/math-emu/sp_fmax.c
@@ -93,8 +93,7 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
@@ -222,8 +221,7 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/sp_fmin.c b/arch/mips/math-emu/sp_fmin.c
index 7ad867fd7de2..ad2599d4a892 100644
--- a/arch/mips/math-emu/sp_fmin.c
+++ b/arch/mips/math-emu/sp_fmin.c
@@ -93,8 +93,7 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
@@ -222,8 +221,7 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/sp_maddf.c b/arch/mips/math-emu/sp_maddf.c
index 1b85b1a527ac..473ee222d90c 100644
--- a/arch/mips/math-emu/sp_maddf.c
+++ b/arch/mips/math-emu/sp_maddf.c
@@ -119,8 +119,7 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
diff --git a/arch/mips/math-emu/sp_mul.c b/arch/mips/math-emu/sp_mul.c
index ded17e28e8bc..26cfd63025e9 100644
--- a/arch/mips/math-emu/sp_mul.c
+++ b/arch/mips/math-emu/sp_mul.c
@@ -89,8 +89,7 @@ union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;
diff --git a/arch/mips/math-emu/sp_sub.c b/arch/mips/math-emu/sp_sub.c
index f3d26a1f162c..16c8e9ae63ed 100644
--- a/arch/mips/math-emu/sp_sub.c
+++ b/arch/mips/math-emu/sp_sub.c
@@ -94,8 +94,7 @@ union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y)
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
-		/* fall through */
-
+		fallthrough;
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
 		SPDNORMY;
 		break;